I am looking for ideas or anwers for what "appears" to have happened over night when I pushed 16.1.1 across the network, I did see where 4 co-located 450i ap's in 5 and 3 ghz and others on other sites all started to plateau on the upload utilization in cnmaestro (Version2.2.1-r32), from what I have seen in the ap's under frame utilization they are hitting 90%+ for long periods of time so I know cnmaestro is reporting mostly correctly. I have applied 16.1.1.1 and the problem has not changed, this seems to have affected at least 10 ap's that previously did not have a problem and for the most part have 64qam modulation rates up and down. as of right now example ap is 100% uplink with 4~5 mbps traffic.
If you actually login to the AP's when this is happening and look at the Statistics -> Frame Utilization tab, is it showing high upload utilization that matches cnMaestro? If you perform a link test on a client during periods of high uplink frame utilization, are you seeing really low upload numbers? On the AP's link status page, are your SM's upload modulation healthy? Lastly, are clients reporting upload issues?
Hmmm... this is really strange. Everything seems to indicate that your AP should be able to sustain much higher upload rates before hitting max frame utilization. I'm still running 16.1 and have not noticed this issue... so I can't compare it to the two versions you've tried. I'm out of ideas on what more to troubleshoot. You should probably open up a support ticket while you're waiting for someone to from Cambium to respond here.
We've confirmed the issue. It is purely a reporting issue that affects 450 and 450i AP's but not does not affect 450m. There are several uplink Frame Utilization statistics that can report two to four times the correct value. It affects 16.1.1, 16.1.1.1 and 16.2 releases.
We have targeting this fix to 16.2.1 and we are working to get a 16.2.1 beta release out with this fix included. Our internal tracker number CPY-16525.
At this time, even with this bug, I would still recommend 16.1.1.1 over 16.1.
We are seeing this affect a 450m AP aswell. It is saying that it is only able to push 100mb at 100% utilzation. But we can watch it in the switch that it is plugged in to and see that it is easly pushing 200mb +. I have an open ticket with support about it as well. For the 450m that we are seeing the issue on.
I have an open ticket also. The APs 450, 450i and 450m perform much better running 16.1. Down side is I need 16.2 or higher for CBRS. I would live to send the phone calls to Cambium for the customers that are suffering.
We use the graphing of frame utilization to determine what APs need upgraded, frequency, changed etc. etc. Not having frame utilization functioning correctly throws a wrench in this.
Do you have an ETA on release on 16.2.1 that fixes this?
This fix will be included in 16.2.1 BETA-2. I hope we will have that load ready for open beta within the next week. We do not have an ETA for the 16.2.1 official release yet.